Crystal-
Winter Furies were believed to be hunted to extinction hundreds of thousands of years ago. One escaped, a young female who is an unknown age (no one knows how long Winter Furies can live).
She mated with a Night Fury thousands of years later and had two eggs; one black as coal, the other white as snow. The black egg was a Night Fury, the white egg was a Winter Fury.
Humans raided the pack nesting area and the Winter Fury mother fled with her white egg while the Night Fury took the black egg.
She hid her egg as she went hunting, she got caught in a human trap and was fearful. That's when a young human female came to her rescue and freed her. The Winter Fury gave them her egg that night so the hatchlet was safe.
She returned home and found her mate dead, the Night Fury egg nowhere to be seen. She proceeded to mourn and watch the humans take care of her child. They did an amazing job; she was fearful they wouldn't give her child back.
They surprised her that day. When she saw her hatchlet learning to fly, she couldn't help in joining. The female human watched and the male joined her. They said goodbye to the hatchlet they named Snow Drift, it fit her, and gave her back to her mother. The Winter Fury was immensely grateful.
She promised to remind Snow Drift of them anytime she forgot or began to forget.
She had never met kinder humans (Spirit or Normal). And she will keep their memory alive.